Encrouching Dread

You enchant a creature you can see within range, so that they feel the dread of an illusionary creature looming behind them, if the creature is immune to the frightened condition, the spell automatically fails.

For the duration of the spell, whenever the targeted creature attempts to take an action or bonus action, you can use your reaction to cause them to doubt their actions, the target must succeed a Wisdom saving throw against your spell save DC or not take the action or bonus action out of the fear the dread created.